Information Technology contributes a small but still significant share to global energy consumption as well as global warming, accountable for roughly 2% of global carbon emissions.  Green IT is a movement to minimize carbon emissions that result from the usage or manufacture of IT.  Beyond this, companies can take part in Green IT by increasing their computer productivity by getting rid of many old computers and replacing them with fewer efficient computers that contribute to lower energy and overhead costs in the longrun.

Computer manufacturers can learn from this concept and can attract potential customers in both emerging markets and developed markets with the prospect of longterm gains from Green IT.